this second obama inaugural is expected to draw less than a third of the nearly 2 million who came four years ago. six bridges and freeways that were closed then will be open this time. but a highway tunnel used as a pedestrian access point that became clogged with thousands last time will be closed this year. and officials say they will have more metal detectors in use and advisories on social media hoping to avoid the long lines, some that never moved. >> there's over 500 pole mounted signs that last time didn't even exist. we also increased the number of people giving directions, telling people where to go. >> reporter: officials say so far they know of no credible threats in ceremonies but will be out in force helping to make sure nothing goes wrong. >>> we've been talking a it, the bay area celebrating the 49ers' nfc championship win. the team just landed in san jose a few minutes ago and now they have just arrived at the training facility in santa clara. let's check in with monte francis. >> reporter: diane, you have impeccable timing. you can see here behind me the police are pul